The GAGA factor regulatory network: Identification of GAGA factor associated proteins. Author Dmitry Lomaev, Anna Mikhailova, Maksim Erokhin, Alexander Shaposhnikov, James Moresco, Tatiana Blokhina, Daniel Wolle, Tsutomu Aoki, Vladimir Ryabykh, John Yates, Yulii Shidlovskii, Pavel Georgiev, Paul Schedl, Darya Chetverina Publication Year 2017 Type Journal Article Abstract The Drosophila GAGA factor (GAF) has an extraordinarily diverse set of functions that include the activation and silencing of gene expression, nucleosome organization and remodeling, higher order chromosome architecture and mitosis. One hypothesis that could account for these diverse activities is that GAF is able to interact with partners that have specific and dedicated functions. To test this possibility we used affinity purification coupled with high throughput mass spectrometry to identify GAF associated partners. Consistent with this hypothesis the GAF interacting network includes a large collection of factors and complexes that have been implicated in many different aspects of gene activity, chromosome structure and function. Moreover, we show that GAF interactions with a small subset of partners is direct; however for many others the interactions could be indirect, and depend upon intermediates that serve to diversify the functional capabilities of the GAF protein. Keywords Animals, Drosophila, Drosophila Proteins, Transcription Factors, Electrophoretic Mobility Shift Assay, Adenosine Triphosphate, Mass Spectrometry, DNA-Binding Proteins, Rabbits, Two-Hybrid System Techniques, Chromatin Journal PLoS One Volume 12 Issue 3 Pages e0173602 Date Published 2017 ISSN Number 1932-6203 DOI 10.1371/journal.pone.0173602 Alternate Journal PLoS One PMCID PMC5351981 PMID 28296955 PubMedPubMed CentralGoogle ScholarBibTeXEndNote X3 XML